inmemory

func (*Driver) Ancestry ¶

func (s *Driver) Ancestry(ctx context.Context, hash string) ([]*merkle.Node, error)

Ancestry returns the path from a node back to its root (node first, root last). See AncestryChain for a variant that also signals when the walk stopped at a missing parent.

func (*Driver) AncestryChain ¶ added in v0.4.0

func (s *Driver) AncestryChain(ctx context.Context, hash string) (*storage.Chain, error)

AncestryChain walks the parent chain starting at hash and returns a Chain describing whether the walk reached a real root, stopped at a parent that is not present in this store, or was guarded out of a cycle.

func (*Driver) AncestryChains ¶ added in v0.4.0

func (s *Driver) AncestryChains(ctx context.Context, hashes []string) (map[string]*storage.Chain, error)

AncestryChains walks each input hash's ancestry and returns a Chain per starting hash. The in-memory driver has O(1) Get, so the batched ent fast path offers no benefit here — this is a straightforward loop over AncestryChain.

func (*Driver) Close ¶

func (s *Driver) Close() error

Close is a no-op for the in-memory storer.

func (*Driver) Get ¶

func (s *Driver) Get(_ context.Context, hash string) (*merkle.Node, error)

Get retrieves a node by its hash.

func (*Driver) GetByParent ¶

func (s *Driver) GetByParent(_ context.Context, parentHash *string) ([]*merkle.Node, error)

GetByParent retrieves all nodes that have the provided parent. This is useful for determining where branching occurs.

func (*Driver) List ¶

func (s *Driver) List(_ context.Context) ([]*merkle.Node, error)

List returns all nodes in the store.

func (*Driver) LoadDag ¶ added in v0.5.0

func (s *Driver) LoadDag(ctx context.Context, hash string) (*merkle.Dag, error)

LoadDag takes a node hash and returns the branch containing that node: its ancestry up to the root and all descendants reachable from that node.

func (*Driver) Open ¶ added in v0.5.0

func (s *Driver) Open(_ context.Context) error

Open is a no-op for the in-memory storer.

func (*Driver) Put ¶

func (s *Driver) Put(_ context.Context, node *merkle.Node) (bool, error)

Put stores a node. Returns true if the node was newly inserted, false if it already existed (no-op due to content-addressing).

Put stores a copy of the node so that storage-managed metadata (currently CreatedAt) can be assigned without mutating the caller.